Debris monitoring

Patent metadata

Field	Value
Publication number	US-10244913-B2
Application number	US-201715794604-A
Country	US
Kind code	B2
Filing date	Oct 26, 2017
Priority date	Dec 30, 2010
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

A debris monitoring system includes a receptacle, a first and a second emitter, and a first receiver. The receptacle defines an opening to receive debris into the receptacle. The first and second emitter are each arranged to emit a signal across at least a portion of the opening. The first receiver is proximate to the first emitter to receive reflections of the signal emitted by the first emitter, and the first receiver is disposed toward the opening to receive an unreflected portion of the signal emitted by the second emitter across at least a portion of the opening.

First claim

What is claimed is:

1. An autonomous cleaning apparatus comprising:
a drive system to navigate the cleaning apparatus about a floor surface while the cleaning apparatus cleans the floor surface;
a debris sensor having a field of view beyond a perimeter of the cleaning apparatus, wherein the debris sensor is configured to detect debris or an obstacle on the floor surface; and
a controller configured to
navigate the cleaning apparatus, in response to the debris sensor detecting the debris, toward the detected debris, and
navigate the cleaning apparatus, in response to the debris sensor detecting the obstacle, away from the detected obstacle.

2. The cleaning apparatus of claim 1 , wherein the controller is configured to navigate the cleaning apparatus to avoid other debris detected by the debris sensor based on a size of the other debris.

3. The cleaning apparatus of claim 1 , wherein the controller is configured to navigate the cleaning apparatus to avoid other debris detected by the debris sensor if a size of the other debris is larger than a size threshold corresponding to a size of a cleaning head opening of the cleaning apparatus.

4. The cleaning apparatus of claim 1 , wherein the debris sensor is positioned on a forward portion of the cleaning apparatus.

5. The cleaning apparatus of claim 1 , wherein the debris sensor is movable to scan an area beyond the perimeter of the cleaning apparatus.

6. The cleaning apparatus of claim 1 , wherein the debris sensor comprises a camera.

7. The cleaning apparatus of claim 1 , further comprising a debris detection system to detect a bin-full condition of a debris bin of the cleaning apparatus,
wherein the controller is configured to cause an indication to be provided in response to the detected bin-full condition.

8. The cleaning apparatus of claim 1 , further comprising a debris detection system to detect a bin-full condition of a debris bin of the cleaning apparatus,
wherein the controller is configured to navigate the cleaning apparatus to a docking station to which the cleaning apparatus is dockable in response to the detected bin-full condition.

9. The cleaning apparatus of claim 1 , further comprising a debris detection system to detect an empty condition of a debris bin of the cleaning apparatus,
wherein the controller is configured to, in response to the debris detection system detecting the empty condition, cause an indication of the empty condition to be provided.

10. The cleaning apparatus of claim 1 , further comprising a debris detection system to detect an amount of debris in a debris bin of the cleaning apparatus,
wherein the controller is configured to cause a remote user device to provide an indicator indicative of the amount of debris in the debris bin.

11. An autonomous cleaning apparatus comprising:
a debris bin;
a drive system to navigate the cleaning apparatus about a floor surface while the cleaning apparatus cleans the floor surface;
a debris sensor directed forward of the cleaning apparatus, wherein the debris sensor is configured to detect debris or an obstacle on the floor surface; and
a controller configured to
navigate the cleaning apparatus, in response to the debris sensor detecting the debris, toward the detected debris to ingest the detected debris into the debris bin, and
navigate the cleaning apparatus, in response to the debris sensor detecting the obstacle, away from the detected obstacle.

12. The cleaning apparatus of claim 11 , wherein the controller is configured to navigate the cleaning apparatus to avoid other debris detected by the debris sensor based on a size of the other detected debris.

13. The cleaning apparatus of claim 11 , wherein the controller is configured to navigate the cleaning apparatus to avoid other debris detected by the debris sensor if a size of the other detected debris is larger than a size threshold corresponding to a size of a cleaning head opening of the cleaning apparatus.

14. The cleaning apparatus of claim 11 , wherein the debris sensor is positioned on a forward portion of the cleaning apparatus.

15. The cleaning apparatus of claim 11 , wherein the debris sensor is movable to scan an area forward of the cleaning apparatus.

16. The cleaning apparatus of claim 11 , wherein the debris sensor comprises a camera.

17. The cleaning apparatus of claim 11 , further comprising a debris detection system to detect a bin-full condition of the debris bin,
wherein the controller is configured to cause an indication to be provided in response to the detected bin-full condition.

18. The cleaning apparatus of claim 11 , further comprising a debris detection system to detect a bin-full condition of the debris bin,
wherein the controller is configured to navigate the cleaning apparatus to a docking station to which the cleaning apparatus is dockable in response to the detected bin-full condition.

19. The cleaning apparatus of claim 11 , further comprising a debris detection system to detect an empty condition of the debris bin,
wherein the controller is configured to, in response to the debris detection system detecting the empty condition, cause an indication of the empty condition to be provided.

20. The cleaning apparatus of claim 11 , further comprising a debris detection system to detect an amount of debris in the debris bin,
wherein the controller is configured to cause a remote user device to provide an indicator indicative of the amount of debris in the debris bin.

21. The cleaning apparatus of claim 11 , wherein:
configurations of the debris sensor to detect the debris comprise configurations to detect the debris, as the cleaning apparatus moves about the floor surface, on a first portion of the floor surface forward of the cleaning apparatus, and
configurations of the debris sensor to detect the obstacle comprise configurations to detect the obstacle, as the cleaning apparatus moves about the floor surface, on a second portion of the floor surface forward of the cleaning apparatus.

22. The cleaning apparatus of claim 1 , wherein:
configurations of the debris sensor to detect the debris comprise configurations to detect the debris, as the cleaning apparatus moves about the floor surface, on a first portion of the floor surface beyond the perimeter of the cleaning apparatus, and
configurations of the debris sensor to detect the obstacle comprise configurations to detect the obstacle, as the cleaning apparatus moves about the floor surface, on a second portion of the floor surface beyond the perimeter of the cleaning apparatus.

Assignees

• Irobot Corp

Inventors

• Schnittman Mark Steven
• Rosenstein Michael Todd

Classifications

• A47L11/4025

  Means for emptying · CPC title

• G01N21/47

  Scattering, i.e. diffuse reflection (G01N21/25, G01N21/41 take precedence {G01N21/55 takes precedence}) · CPC title

• A47L9/2805

  Parameters or conditions being sensed · CPC title

• A47L9/2826

  the condition of the floor · CPC title

• A47L11/4013

  Contaminants collecting devices, i.e. hoppers, tanks or the like · CPC title